Select Is a Function or Is not a Function to correctly classify each relation. {(3, 2),(6, 4),(9, 6),(12, 8)}

{(2, 3),(2, 5),(3, 6),(9, 4)}

{(2, 4),(6, 3),(4, 8),(6, 6)}

{(3, 4),(5, 2),(6, 8),(6, 4)}

Which ones are functions and which ones aren't?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)